Bicyclist&#39;s globe.



PATENTED MAY 3, 1904.

A. EOSENTHAL.

BIGYGLISTS GLOBE.

APPLIOATION FILED MAR. 1, 1904.

NO MODEL.

GHZWQ Inn In THE Noun-s PETERS cu k Pmndumm WASHINGTON, n c.

UNITED STATES Patented May 3, 1904.

PATENT OFFICE.

BICYCLISTS GLOBE.

SPECIFICATION forming part of Letters Patent No. 759,130, dated May 3,1904.

k Application filed March 1,1904. Serial No. 196,092. (No model.)

To ctZZ whom it may concern.-

Be it known that I, ARTHUR ROSENTI-IAL, a citizen of the United States,residing at Grand Rapids, in the county of Kent and State of Michigan,have invented certain new and useful Improvements in Bicyclists Globes,of which the following is a specification.

My invention relates to improvements in bicycle-whirls or implements foruse in expert bicycle-work; and its objects are, first, to provide alatticed globe with which the bicyclist may attain sufiicient momentumand have sufficient structure so that he may ride beyond the verticalcenter until he assumes nearly an inverted position upon his wheels;second, to render said globe sufliciently rigid to withstand thecentrifugal force of the bicyclists and their wheels when acquiringmomentum for the dash to the inverted position in the globe, and, third,to so construct the globe that it may be readily assembled or takenapart for shipment. I attain these objects by the mechanism illustratedin the accompanying drawings, in which-- Figurel is an elevation of theglobe. Figs. 2, 3, 4t, and 5 show sections of the ribs or framework withappliances attached for readily assembling the sections of the globe.Fig. 6 is a section of the top and bottom caps on the line or m of Fig.7; and Fig. 7 is a plan of the same, showing a portion of the globearound it.

Similar letters refer to similar parts throughout the several views.

In the construction of this globe I use angled steel ribs a, to one wingof which I firmly rivet a network of band-iron Z), forming severalsections each independent of the other sufiicient to form a perfectglobe, as shown in Fig. l, the network 6 of band-iron rendering it easyfor the audience to see the bicyclist ride within. For the tops andbettoms of the globe I form a circle a of the angle-iron and support anetwork-capj therein, so that the Wheels will pass over them smoothlyand without danger of injury as they pass over the rings. I provide forso securing the sections together that they may be readily taken apartor reassembled when desired by passing pins it or their equivalentsthrough holes 71', through theflanges a of the ribs (6, or the flangest" of the band 27, and pressing the flanges firmly by means ofconveniently-constructed eccentrics, substantially shown. In Figs. 2 andat, f represents the body of the clamp, which has an integral pin it,that passes through the flange a, as shown in Fig. 2, when the handle 7is thrown around to the position shown in Fig. I and indicated by thedotted lines in Fig. 2, and draws the flanges snugly and firmlytogether. In Fig. 5 I show another form of eccentric applied as a directclamp upon the flange, and in Fig. 3 I show a simple lever-clamp to beused with a detached pin. This clamp hooks under the pins and has a wingor bearing on either side of the flanges, so that the ribs may be heldfirmly together thereby.

To facilitate entering into and emerging from the globe, I place a doorcin convenient position for the purpose and secure it in any convenientand safe manner to insure an even surface for the passage of the wheelsover the lines of connection with the section-walls of the globe.

(Z d represent guy-rods for securing the globe to position when in use,and as many may be used as desired and of any desired or convenientform.

To render the structure of the globe as firm and rigid as possible, I soconnect the rims v of the upper and the lower sections that the ribs ("6will alternate, as in Fig. 1, so that there is no full line of verticaldivision at any place in the globe, and each overlzmping section of theband 2' of one hemisphere will strengthen the corresponding overlappingsections of the other hemisphere, thus rendering this line of connectionpractically as firm and rigid as it would be if constructed of a singleunbroken band of angle-iron.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent of the United States, is-

1. In hollowglobe construction sections bordered with angle-iron formingsolidly-eonnected frames and intervening network of band-iron securelyinterwoven and the ends firmly secured to the angle-iron borders, andclamps "for readily assembling and securely fastening the partstogether, substantially as and for the purpose set forth.

2. In hollow-globe construction a series of disconnected sections havingan angle-iron border on four sides and a network of bandiron interwovenand securely attached at the ends, to the borders, a door in onesection, pins engaging the angle-irons,and eccentrics for forcing andsecurely holding the angleirons of adjacent sections together forming alatticework globe, substantially as and for the purpose set forth.

3. In hollow-globe construction, a series of properly-formed detachedsections each constructed with a border of angle-iron ribs, a network ofband-iron interlaced and securely attached, at the ends, to the borders,said secary 27, 1904.

ARTHUR ROSENIHAL. In presence of MARTIN ROSENTHAL, I. J. GILLEY.

